Okay good news. I think I fixed a majority of the kr issues. Today I cleaned all three MAF sensors. Only one that was dirty was the third sensor found above the engine, and man was it dirty. Used compressed MAF cleaner and a q-tip and got it as clean as possible then removed and cleaned my throttle ...

Sorry for the second post,
But for your theory you might be onto something. At around 50mph to interstate speeds, if a use a light/constant throttle my engine will create a drone and the timing will advance for some reason to the max the gauge will read. This has gotten louder and within a larger ...

Hm it’s nice knowing I’m not alone with this issue. I would think that some of those 4inch exhaust systems would have similar issues but you’ve convinced me to get it fixed next week. I think one of the million exhaust shops here could put a new clamp on or weld it so I’ll let you know if that fixes ...

Sorry one more thing to add. I am on my second engine (turbo blew out on first engine) and It happened(s) on the stock tune with 93 octane on both engines.

Also reducing the global spark does not change anything nor adding more fuel to the rich/lean condition.

I have replaced the plugs with the new updated ones to .30 gap about three months ago and I have also drilled my intercooler as I have experienced the water in the intercooler bog before but this is different. I have recently found a small exhaust leak at the clamp directly after the left cat ...

I had been running the MPG Boost tune for my trip. I usually run the 91 octane tune and have just switched it back. Sorry for the late reply.

I’m currently on a 2 week trip but I’m just using the can 91 tune from the trinity 1000 for the 2011 f150 3.5l EcoBoost. Will upload when I return.

Hey y'all,
I have some weird looking knock retard with my 2011 f-150 ecoboost. At WOT I get up to +12kr and at low rpm I get high negative kr when I hold a certain position on the throttle. This is my second ecoboost engine for this truck and both have had this same issue. Happens on stock as well ...